I was wondering if anyone on here remembers the old Coors Beer Ball? A friend of mine who's dad homebrews said he uses two 2.5 gallon beer balls instead of kegs. Apparently they can be re-used.

Does anyone know about these things? I've been looking online and can't seem to find anything on them. I'm looking into maybe purchasing one for cookouts and such so I don't have to haul a jockeybox and keg around.